Holley EFI


Holley is quickly becoming The New Standard In EFI! Holley’s HP ECU is standard equipment on the 2013/2014 Chevrolet COPO Camaro and Holley’s EFI throttle body powers every NASCAR Sprint Cup Series™ team. Top racers are making the switch to Holley EFI every day. Racers like Tom Bailey who set three new records and took the overall event win on the 2013 Hot Rod Magazine Drag Week and John Scali who used it to win the 2013 JEGS All Star race. But that’s not all. The world’s best street machine builders and tuners are making the switch to Holley EFI. Builders like Dave Lane who used Holley EFI to power the 2013 Goodguys Hot Rod of the Year and tuners like Steve Morris who use it to build some of the baddest forced induction beasts on the planet. It’s the easiest, most refined, feature-rich system that money can buy. But, don’t take our word for it, see what the best are saying about Holley EFI!


How To Go From A Carburetor To EFI - 06/04/2021

While there is certainly still a welcome place for carburetors in racing and classic vehicle restorations, considering the numerous advantages offered by EFI it has found a welcome adoption by vintage vehicle owners who love driving their cars. - Read More

How To Update Your Outdated ECU To Modern EFI - 06/15/2021

There are probably thousands of small-block Chevys running wild on the streets right now with an antiquated factory TPI system ECU. We’re talking computers with removable chips! An equally large number of small- and big-block engines are likely limping around on outdated and inefficient aftermarket fuel injection systems just begging for a more efficient way to manage spark and fuel. - Read More

Going In-Depth With The Sniper Stealth 4500 EFI System - 05/19/2021

While old habits and proven strategies can be hard to shelve, the advantages offered by EFI systems like the Sniper Stealth 4500 EFI can take an already-effective race program to the next level. - Read More

Going In-Depth With Holley's Terminator X Stealth 4500 EFI System - 03/16/2021

Hot on the heels of the Terminator X Stealth 4150 EFI system that debuted earlier this year, Holley has now added the Terminator X Stealth 4500 EFI system to the lineup. As the name implies, the new hardware is designed to work with 4500 flange intake manifolds, but this system is much more than just a carburetor replacement that’s designed to improve drivability and throttle response. - Read More

How Does A Dual Sync Distributor Work And When Do You Need One? - 04/19/2021

Conventional distributors use centrifugal weights and springs to affect the engine timing. Essentially the faster the distributor spins, the more the weights move away from the center of the distributor, and that alters the engine timing in turn.

Although that design worked well enough for decades of automotive applications, it’s not exactly cutting edge tech by today’s standards, and it isn’t particularly user-friendly when it comes to tuning. - Read More

How To Choose The Correct Fuel Injector For Your Engine. - 04/15/2021

When it comes to engine performance, the buck ultimately stops at fueling. After all, if you don’t have enough juice to go with that cool air and hot spark, you’re ultimately selling yourself short. Worse still, a fuel system that can’t keep up with the rest of your setup can ultimately lead to engine damage. And that’s why it’s important to make sure the fuel injectors you’re using are up to the task. - Read More


Meet "HeeHaw", Chris Nunn's 1970 Chevrolet CST/10 Barn Find Build - 06/09/2021

It wasn’t your typical “barn-find” vehicle where you open a door and discover something no one knew existed. Instead, Chris knew the whereabouts of this C10 for quite a while. A coworker, Tracy Smith, introduced him to the pickup around 2010. It was his daughter’s friend’s grandfather’s truck, which was stored away by her mother after his passing. The girl’s mother had no plans for the truck, but she just couldn’t let it go for sentimental reasons. - Read More

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Holley Sniper EFI - Affordable Carburetor Replacement

Terminator X Live Overview and Unboxing

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Holley EFI - How To Check For Potential Problems           

Upgrade the Capability of Your Holley ECU with the New CAN Input/Output Module

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Holley EFI ECU Mounting & Wiring

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